Chicago Mayor Rahm Emanuel spoke at the Stanford Graduate School of Business on Monday and told Democrats to abandon hope that they’ll have an immediate comeback in 2018.

“Democrats are in the lowest level since 1928 in the House of Representatives and the lowest level since 1925 in the state houses. Not really good,” Emanuel said before adding one glimmer of good news. “It is hard to imagine it getting lower.”

Emanuel continued to lecture Democrats on how they needed to stop demanding a purity test for every candidate. The Chicago mayor was all for running moderate Democrats in Republican-leaning districts.

Most of all he said that the Democrats’ path back to power was going to take a while. It would involve them growing a farm team and winning back state legislative seats first.

“It took us a long time to get this low. It ain’t gonna happen in 2018,” Emanuel continued. “Take a chill pill, man. You gotta be in this for the long haul. And if you think it’s going to be a quick turn around like that, it’s not.”